Applications Manual for TUHS series
1. Pin Assignment
Pin assignment
2. Connection for Standard Use
Connection for standard use
Input fuse
：
F1
Smoothing capacitor for input voltage
：
Cbc
Inrush current limiting resistor
：
R1
Input capacitor (TUHS25)
：
C1
Varistor
：
SK1
Output capacitor
：
Co
AC line filter
：
L1
Y capactor
：
C11,C12,C13
3. Derating
Output current derating
Input voltage derating
4. Operation under low temperature condition
A-10
Outline of unstable operation at low temperature
and countermeasures
5. Holdup time
Holdup time
Holdup voltage
6. Board layout
Caution points of board layout
Reference PCB layout
Note
：
Information contained in this document is subject to change without notice for improvement.
The materials are intended as a reference design, component values
and circuit examples
described in this document varies depending on operating conditions and component variations.
Please select the components and design under consideration of usage condition etc.
5.2
A-13
A-9
3.2
6.2
A-16
6.1
A-14
2.1
2.4
A-6
2.5
2.8
A-1
A-2
A-4
A-2
A-7
2.3
A-4
A-7
2.6
A-7
A-7
3.1
A-12
5.1
A-14
Contents
Page
A-1
2.2
1.1
2.7
A-12
2.9
A-7
A-10
4.1
A-8
A-8
